Bending-machine.



J. -KBLLNER. BENDILIG MACHINE. APPLIUATION FILED JULY 2,1910

979,962, Patented Dec. 27,1910.

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WITNESSE INVENTOR THE mmms PETERS col, WASHINGTON. n4 0 J. KELLNER.

BENDING MACHINE. APPLICATION FILED JULY 2, 191.0.

979,962, Patented Dec. 27, 1910.

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J. KELLNER. BENDING MACHINE.

APPLICATION FILED JULY 2, 1910.

979,962, Patented Dec. 27,1910.

3 SHEETS-SHEET 3.

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UNTTED STATES PATENT OFFICE.

JULIUS KELLNER, OF CALUMET, PENNSYLVANIA.

BENDING-MACHINE.

T all whom 'it may concern:

Be it known that T, Jones KELLNER, a resident of Calumet, in the countyof VVestmoreland and State of Pennsylvania, have invented certain newand useful Improvements in Bending-Machines, of which the following is aspecification.

My invention relates to bending machines and more particularly to a newand improved metal bending machine designed for bending metal sheetmaterial as well as bars of metal.

An objectof the present invention is to provide a new and improvedbending machine of the class mentioned capable of forming a variety ofbends in a metallic sheet or bar or other materials as required.

In the accompanying drawings, which illustrate an application of myinvention, Figure l is a plan of a bending machine embodying myinvention; Fig. 2, a side elevational view; Fig. 3, a vertical sectionalview taken on line ITIIII of Fig. 1; Fig. 4, a part elevational and apart sectional view being taken on line IVIV of Fig. 5; Fig. 5 a frontview; and Fig. 6, a sectional view taken on line VI VI of Fig. 1.

Referring to the drawings, 2 designates a bed-plate, which in the use ofmy invention is mounted on a support, not shown, at a convenientdistance from the fioor level. Plate 2 preferably comprises a metalliccasting formed with housings 3, and a hollow center as shown at 4, andan upwardly projecting wall or member 5. Partially covering the centralopening I provide a work supporting plate 6. and secured thereto or castintegral therewith are two supporting-members 7. As illustrated saidmembers are secured to the bed-plate by means of bolts 8 and eachcomprises two inclined members 9 and 10, front and rear upright members11 and 12, and a horizontal member 13. The inclined members 9 are eachformed with an opening 14 having an enlarged portion 14, while theinclined members are formed with an internally threaded opening 15through each of which is passed threaded member 16 of a crank arm 11.

Mounted on each of the supporting mem bers and adaptable for movementthereupon is a carrier block 18. Each of the carriers 18 is providedwith an inwardly projecting part or member 19 designed to extend throughthe opening or slot 14 0f the re- Specification of Letters Patent.

Application filed July 2, 1910.

Mounted on said plate Patented Dec. 27, 1910.

Serial No. 570,185.

spective supporting members and to be attached to a reduced end 20 ofmember 16 by means of a cotter 21. The inclination of members 9 ispreferably forty-five degrees and the threaded members 16 are eachdisposed parallel with the respective members 9. The respectivecrank-arms are connected by an operating bar 22 as particularly shown byFig. 1, and both of said carriers 18 are simultaneously moved by amovement imparted to bar 22. From the construction described it will benoted that the carriers have a combined vertical and lateral movementwith respect to the bed-plate.

Located on the front flat faces 23 of the carriers and extending acrossthe machine from one carrier to the other, I provide a detachablemovable work clamping-member 24. As particularly shown by Fig. 5, thedetachable clamping-member 24 is formed with slots 25 and 26 therebyenabling said member to be attached to and detached from pins 27projecting from the respective faces 23 of the carriers. Thedetachability of clamping-member 24 is important in that it permits someshapes to be placed in position to be bent that could not otherwise beplaced in the desired position.

Located under the movable clampingmember 24 and secured to the frontupright members 11 of the supports by means of countersunk bolts 28, Iprovide a fixed clamping member 29. The front face of member 29, whenthe movable clampingmember 24 is in its lowermost position as shown by.Fig. 3, is in alinement with the front face of member 24.

Mounted in the housings 3 and secured therein by caps 30 are the journalends 31 of a partially rotatable bending-member 32. As illustrated, thebending-member proper is of rectangular form and provided with a fiatwork engaging face 33, while its journals 31 are cylindrical and offsetwith respect to the center line of the angular portion, that is to say,the center of the respective cylindrical journals is in line with theface 33, as well as in line with the front face of the fixedclamping-member and in line with the front face of the movableclamping-member when the latter is in the position shown by Fig. 3.

The bending-member is, as shown, actuated by means of levers or arms 35mounted on the squared ends 36.

Fig. 4, illustrates a piece of work or material 37 to be bent and themanner ofbending the material. Referring to said view it will be notedthat the material is tightly clamped between the movable and fixedclamping-members with an end, shown by dotted lines, projecting beyondand over the bendingmember, shown in dotted lines in its loweredposition. The material is bent to any desired angle over an edge of themovable clamping-member by moving the bending-member from the positionshown by dotted lines to the position shown in full lines or anyintermediate position.

WVhat I claim is 1. In a bending machine, a fixed clamping-member, amovable detachable clamping-member cooperating with the fixedclamping-member for holding the material to be bent, positively operatedmeans for moving the movable clamping-member vertically and laterallywith respect to the fixed clamping-member, and a member for bending thematerial over an edge of the movable clamping-member.

2. In a bending machine, a fixed clamping-member, a movableclamping-member, means for moving the movable clampingmember verticallyand laterally with respect to the fixed clamping-member, comprising aninclined slotted support, a carrier provided with a member extendinginto the opening of the support and a threaded member connected to thecarrier, and a bending-member for bending the material over an edge ofthe movable clamping-member.

3. In a bending machine, a fixed clamping-member, a movableclamping-member, means for moving the movable clampingmember verticallyand laterally with respect to the fixed clamping-member comprising acarrier, an inclined support, and means im parting a positive motion tothe carrier, and a bending-member for bending the material over an edgeof the movable clampingmember.

4. In a bending machine, a fixed clamping-member, a movableclamping-member, means for moving the movable clampingmember verticallyand laterally with respect to the fixed clamping-member comprisinginclined supporting-members, carriers mounted on the inclined-membersand means for moving the carriers on the supports, and a bending-memberfor bending the material over an edge 01"? the movable clampingmember.

5. In a bending machine, a fixed clamping-member, a detachable movableclamping-member, means for moving the movable clamping-member verticallyand laterally with respect to the fixed clamping-member comprisinginclined supporting-members, carriers mounted on the inclined-members towhich the movable clampingdnember is detachably secured, and means formoving the carriers on the supports, and a bendingmember for bending thematerial over an edge of the movable clamping-member.

6. In a bending machine, a fixed clamping-member, an adjustable anddetachable clamping-member cooperating with the fixed-member for holdingthe material to be bent, a carrier to which the adjustableclampingmember is detachably secured, an inclined support for thecarrier, means for moving the carrier on the support, and a rotatableangular bending-member for bending the material over an edge of theadjustable clamping-me1nber.--

7. In a bending machine, a fixed clampingmember, a detachable movableclamping-member, means for moving the movable clamping-member verticallyand laterally with respect to the fixed clamping-member comprisinginclined supporting-members, carriers mounted on the inclined members towhich the movable clamping-member is detachably secured, means formoving the carriers on the supports, and a rotatable angularbending-member for bending the material over an edge of the movableclamping-member. 8. In a bending machine, a fixed clampextendingrearwardly of the fixed clamping-member, a movable clamping-membercooperating with the fixed clamping-member for holding the material tobe bent, positively operated means for moving the movable clampingmembervertically and laterally with respect to the fixed clampingmember, and abending-member for bending the material over an edge of the movableclamping-member.

9. In a bending machine, a fixed clamping-member, a bed-plate having anopening extending rearwardly of the fixed clampingmember, a movabledetachable clamping member cooperating with the fixed clamping-memberfor holding the material to be bent, positively operated means formoving the movable clamping-member vertically and laterally wit-hrespect to the fixed clampingmember, and a bending member for bendingthe material over an edge of the movable clamping-member.

In testimony whereof I afiix my signature in presence of two witnesses.

JULIUS KELLNER. Witnesses D. C. CRAMER, Josnr ZANAPEKY.

1ngmember, a bed-plate having an openlng

